针对萤石重晶石共生矿可浮性相近、浮选分离困难的选矿难题，对云南某萤石重晶石共生矿进行了选矿工艺研究. 结果表明，原矿含重晶石44.38%，萤石20.21%，脉石矿物主要为石英. 经多个实验流程对比后，最终采用萤石和重晶石混合浮选流程，以皂化油酸钠为捕收剂. 采用抑重浮萤的流程，以硫酸铝为重晶石抑制剂，保证萤石可浮性. 经闭路分选流程得到品位96.13%、回收率88.74%的萤石精矿和品位87.65%、回收率97.78%的重晶石精矿.

The associated ore with fluorite and barite in Yunnan was studied to solve the technological problems that floatability was similar and separation of fluorspar with barite difficult. The results show that the grade of barite in the ore is 44.38% and that of fluorite 20.21%, and the chief gangue mineral is quartz. After comparison of some trial processes, the mixed flotation process of fluorite and barite is ultimately adopted. Saponified sodium oleate is used as collector in bulk flotation. The mixed flotation process of floating fluorspar and restraining barite is then taken with aluminum sulfate as inhibitor of barite in order to assure the floatability of fluorspar. After the closed circuit flotation experiments, the grade of fluorite concentrate is 96.13% and the recovery rate 88.74%, and the grade of barite concentrate is 87.65%, and the recovery rate 97.78%.